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CVE-2025-38668— regulator: core: fix NULL dereference on unbind due to stale coupling data

EPSS 0.03% · P9

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinuxd8ca7d184b33af7913c244900df77c6cad6a5590< 7574892e259bbb16262ebfb4b65a2054a5e03a49affected
d8ca7d184b33af7913c244900df77c6cad6a5590< 6c49eac796681e250e34156bafb643930310bd4aaffected
d8ca7d184b33af7913c244900df77c6cad6a5590< ca9bef9ba1a6be640c87bf802d2e9e696021576aaffected
d8ca7d184b33af7913c244900df77c6cad6a5590< 800a2cfb2df7f96b3fb48910fc595e0215f6b019affected
d8ca7d184b33af7913c244900df77c6cad6a5590< 233d3c54c9620e95193923859ea1d0b0f5d748caaffected
d8ca7d184b33af7913c244900df77c6cad6a5590< 5d4261dbb3335221fd9c6e69f909ba79ee6663a7affected
d8ca7d184b33af7913c244900df77c6cad6a5590< d7e59c5fd7a0f5e16e75a30a89ea2c4ab88612b8affected
d8ca7d184b33af7913c244900df77c6cad6a5590< ca46946a482238b0cdea459fb82fc837fb36260eaffected
… +10 more rows
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I. Basic Information for CVE-2025-38668

Vulnerability Information
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Vulnerability Title
regulator: core: fix NULL dereference on unbind due to stale coupling data
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix NULL dereference on unbind due to stale coupling data Failing to reset coupling_desc.n_coupled after freeing coupled_rdevs can lead to NULL pointer dereference when regulators are accessed post-unbind. This can happen during runtime PM or other regulator operations that rely on coupling metadata. For example, on ridesx4, unbinding the 'reg-dummy' platform device triggers a panic in regulator_lock_recursive() due to stale coupling state. Ensure n_coupled is set to 0 to prevent access to invalid pointers.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未重置耦合数据，可能导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux d8ca7d184b33af7913c244900df77c6cad6a5590 ~ 7574892e259bbb16262ebfb4b65a2054a5e03a49 -
LinuxLinux 5.3 -

II. Public POCs for CVE-2025-38668

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III. Intelligence Information for CVE-2025-38668

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Same Patch Batch · Linux · 2025-08-22 · 60 CVEs total

CVE-2025-38634power: supply: cpcap-charger: Fix null check for power_supply_get_by_name
CVE-2025-38616tls: handle data disappearing from under the TLS ULP
CVE-2025-38620zloop: fix KASAN use-after-free of tag set
CVE-2025-38619media: ti: j721e-csi2rx: fix list_del corruption
CVE-2025-38621md: make rdev_addable usable for rcu mode
CVE-2025-38618vsock: Do not allow binding to VMADDR_PORT_ANY
CVE-2025-38630fbdev: imxfb: Check fb_add_videomode to prevent null-ptr-deref
CVE-2025-38632pinmux: fix race causing mux_owner NULL with active mux_usecount
CVE-2025-38631clk: imx95-blk-ctl: Fix synchronous abort
CVE-2025-38633clk: spacemit: mark K1 pll1_d8 as critical
CVE-2025-38629ALSA: usb: scarlett2: Fix missing NULL check
CVE-2025-38635clk: davinci: Add NULL check in davinci_lpsc_clk_register()
CVE-2025-38636rv: Use strings in da monitors tracepoints
CVE-2025-38638ipv6: add a retry logic in net6_rt_notify()
CVE-2025-38639netfilter: xt_nfacct: don't assume acct name is null-terminated
CVE-2025-38640bpf: Disable migration in nf_hook_run_bpf().
CVE-2025-38641Bluetooth: btusb: Fix potential NULL dereference on kmalloc failure
CVE-2025-38642wifi: mac80211: fix WARN_ON for monitor mode on some devices
CVE-2025-38643wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac()
CVE-2025-38644wifi: mac80211: reject TDLS operations when station is not associated

Showing top 20 of 60 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38668

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